Chapter 4: Problem 28
Write the equation in logarithmic form. $$ 2^{5}=32 $$
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Chapter 4: Problem 28
Write the equation in logarithmic form. $$ 2^{5}=32 $$
These are the key concepts you need to understand to accurately answer the question.
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Prove the power property of logarithms: \(\log _{b} x^{p}=p \log _{b} x\)
\(F(C)=\frac{9}{5} C+32\) gives the temperature in degrees Fahrenheit as a function of the temperature \(C\) in degrees Celsius. Find an equation for \(C(F)\) and interpret its meaning in the context of this problem.
Al needs to borrow \(\$ 15,000\) to buy a car. He can borrow the money at \(6.7 \%\) simple interest for 5 yr or he can borrow at \(6.4 \%\) interest compounded continuously for 5 yr. a. How much total interest would Al pay at \(6.7 \%\) simple interest? b. How much total interest would Al pay at \(6.4 \%\) interest compounded continuously? c. Which option results in less total interest?
In \(1989,\) the Loma Prieta earthquake damaged the city of San Francisco with an intensity of approximately \(10^{6.9} I_{0} .\) Film footage of the 1989 earthquake was captured on a number of video cameras including a broadcast of Game 3 of the World Series played at Candlestick Park. (See Example \(\mathbf{1 0}\) ) a. Determine the magnitude of the Loma Prieta earthquake. b. Smaller earthquakes occur daily in the San Francisco area and most are not detectable without a seismograph. Determine the magnitude of an earthquake with an intensity of \(10^{3.2} I_{0}\). c. How many times more intense was the Loma Prieta earthquake than an earthquake with a magnitude of 3.2 on the Richter scale? Round to the nearest whole unit.
Solve the equation. Write the solution set with the exact values given in terms of common or natural logarithms. Also give approximate solutions to 4 decimal places. \(80=320 e^{-0.5 t}\)
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